Blueberry buttermilk crumb cake recipe & sweet rolls

Ingredients

• 2 - 1/4 cups flour
• 1 cup brown sugar
• 1/2 pound butter
• 1 tablespoon cinnamon
• 1/2 teaspoon salt
• 2 - 1/2 cups flour
• 2 cups sugar
• 3 eggs
• 1 teaspoon vanilla
• 1 cup buttermilk
• 1 teaspoon creme de tartar
• 1 teaspoon baking soda